Sophie: php-manual-en-4.3.0-2mdk noarch

php-manual-en-4.3.0-2mdk.noarch.rpm

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>imagecreatefrompng</H1
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><P
>    (PHP 3&#62;= 3.0.13, PHP 4 )</P
>imagecreatefrompng&nbsp;--&nbsp;Create a new image from file or URL</DIV
><DIV
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><A
NAME="AEN35264"
></A
><H2
>Description</H2
>resource <B
CLASS="methodname"
>imagecreatefrompng</B
> ( string filename)<BR
></BR
><P
>&#13;     <B
CLASS="function"
>imagecreatefrompng()</B
> returns an image identifier
     representing the image obtained from the given filename.
    </P
><P
>&#13;     <B
CLASS="function"
>imagecreatefrompng()</B
> returns an empty string
     on failure. It also outputs an error message, which unfortunately
     displays as a broken link in a browser.  To ease debugging the
     following example will produce an error <SPAN
CLASS="acronym"
>PNG</SPAN
>:
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><B
>Example 1. 
       Example to handle an error during creation (courtesy
       vic@zymsys.com)
      </B
></P
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><PRE
CLASS="php"
>function LoadPNG ($imgname) {
    $im = @imagecreatefrompng ($imgname); /* Attempt to open */
    if (!$im) { /* See if it failed */
        $im  = imagecreate (150, 30); /* Create a blank image */
        $bgc = imagecolorallocate ($im, 255, 255, 255);
        $tc  = imagecolorallocate ($im, 0, 0, 0);
        imagefilledrectangle ($im, 0, 0, 150, 30, $bgc);
        /* Output an errmsg */
        imagestring ($im, 1, 5, 5, "Error loading $imgname", $tc);
    }
    return $im;
}</PRE
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    </P
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><B
>Tip: </B
>You can use a URL as a
filename with this function if the <A
HREF="ref.filesystem.html#ini.allow-url-fopen"
>fopen wrappers</A
> have been enabled.
See <A
HREF="function.fopen.html"
><B
CLASS="function"
>fopen()</B
></A
> for more details on how to specify
the filename and <A
HREF="wrappers.html"
>Appendix I</A
> for a list of supported
URL protocols.</P
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>Windows
versions of <TT
CLASS="literal"
>PHP</TT
> prior to PHP 4.3 do not
support accessing remote files via this function, even if
<A
HREF="ref.filesystem.html#ini.allow-url-fopen"
>allow_url_fopen</A
> is enabled.
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